mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-18 10:31:57 +00:00
7ed47a1335
discussion of this change. Boy are my fingers tired. ;-) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45411 91177308-0d34-0410-b5e6-96231b3b80d8
36 lines
1.3 KiB
C++
36 lines
1.3 KiB
C++
//===- llvm/Analysis/LoadValueNumbering.h - Value # Load Insts --*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file defines a value numbering pass that value #'s load instructions.
|
|
// To do this, it finds lexically identical load instructions, and uses alias
|
|
// analysis to determine which loads are guaranteed to produce the same value.
|
|
//
|
|
// This pass builds off of another value numbering pass to implement value
|
|
// numbering for non-load instructions. It uses Alias Analysis so that it can
|
|
// disambiguate the load instructions. The more powerful these base analyses
|
|
// are, the more powerful the resultant analysis will be.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_ANALYSIS_LOAD_VALUE_NUMBERING_H
|
|
#define LLVM_ANALYSIS_LOAD_VALUE_NUMBERING_H
|
|
|
|
namespace llvm {
|
|
|
|
class FunctionPass;
|
|
|
|
/// createLoadValueNumberingPass - Create and return a new pass that implements
|
|
/// the ValueNumbering interface.
|
|
///
|
|
FunctionPass *createLoadValueNumberingPass();
|
|
|
|
} // End llvm namespace
|
|
|
|
#endif
|